Header ceramic coat or heat shield wrap?

[tomm.brz]

Originally Posted by 86MLR

Wrapping is much more efficient than ceramic coating.

In saying that we don't use salt on the road here, so IRT wrap and contamination for your area, I have no idea.

Lagging a header on a street car is a really good idea, the added temps from an unlagged header when you are sitting in traffic is huge.

Ceramic coating should be inside and outside.

Ceramic coating only the outside will not have a large effect, it will negate some corrosion though, but minimal heat.

Painting a header with high temp paint (protects against corrosion) and then wrapping (heat retention) gives the best of both worlds.

I have had headers ceramic coated and wrapped before, but, I feel the additional cost of the ceramic coating was unjustified when some high temp paint could have been used, with simular results in heat control.

I am currently waiting for a time to put my car up on a lift or over a pit to wrap the AVO turbo manifold and dump, they are coated, and the coating seems to be holding up well, but, not really what I would call efficient at heat control in comparison to a wrapped header.

The best place to get ceramic coating done is at an industrial flame coating place.

Ceramic coating to control temps isn't just a case of spraying on a coat, sadly this is what all alot of places do, and they charge alot of coin for it.

Quality of base materials, thickness of coating and longevity are also things to concider.

then remember to keep an estinguer in your car, since you are also SCed if I don't recall wrong

or if you end up like me with a thrown rod that caused a lot of oil to go over a 800°C header and start a fire, you will regret not having one
If my header were wrapped , fire wouldn't stop by itself after 1 minute without other damages

[86MLR]

I always have a 2.5kg extinguisher

Anything under 2.5kg is just hopeful thinking

Old habit from when I was a track junkie

[Hawk77FT]

I would say one or the other. Wrapping over ceramic coating increases the chances of the coating to be overheated and eventually flake off. The other thing to consider, is the quality of the header and welds in particular. The ceramic coating will help with keeping the heat inside the tube, so when you add another layer of "protection" you contribute to increasing the temps in the manifold which will cause fatigue on the actual manifold. That could cause welds cracking, etc.
But, up to you! Your choice, your money.

[86MLR]

Originally Posted by 86MLR

I always have a 2.5kg extinguisher

Anything under 2.5kg is just hopeful thinking

Old habit from when I was a track junkie

I lied, it's a 1.5kg

This one >

[Grady]

Originally Posted by Hawk77FT

I would say one or the other. Wrapping over ceramic coating increases the chances of the coating to be overheated and eventually flake off. The other thing to consider, is the quality of the header and welds in particular. The ceramic coating will help with keeping the heat inside the tube, so when you add another layer of "protection" you contribute to increasing the temps in the manifold which will cause fatigue on the actual manifold. That could cause welds cracking, etc.
But, up to you! Your choice, your money.

The extra layer will slow down cooling. this will help reduce stress. only time it is too hot is if it melts.

[lamawithonel]

https://www.ft86club.com/forums/show...0&postcount=24
http://www.ft86club.com/forums/showp...4&postcount=31

[Impureclient]

Pretty sure I can touch my header very shortly after it's off after running the car up to full temperature. I thought for sure after going from the stock one to
aftermarket that I had ceramic coated, things under the hood weren't as hot.
I'd be interested in running a timed test and then shooting the headers and a couple different areas under the hood to see what it is compared to a stock car.
I have a laser thermometer if anybody wants to do their stock header and see what the real difference is.

In fact tomorrow, I will get it fully warmed up and then shoot the laser at the header and several parts under the hood and record it at like 1, 5 and 15 minutes
after it's off and report temps.



Done: Ambient temp here is 73 F, Inside my garage where I checked is 82 F. I couldn't get a 1 min reading as I had trouble finding the laser thermometer in time. At about 7 minutes after parking, I could wrap my hand around the header and keep it there without taking it away. The temps on the header where all the places I could aim the laser at. That plastic boxer piece at the top of the engine is still warm to the touch right now and actually went up in temp after I closed the hood and just opened it back up now to get one last reading at 30 min(126 F) and the header feels slightly above garage temperature in some spots but is (100-110 F).